If the truck is a 4 wheel drive, you can't repack the front wheel bearings. It has a sealed hub/bearing assembly that is not serviceable.
The front wheel bearings are a sealed unit so repacking is not possible nor necessary.
yes.. To my knowledge the rear wheel bearings are lubricated with the differential gear lube as you drive.
Front wheel bearings on a 4 wheel drive Explorer are not serviceable, replace them.
When ever a brake job is done.
They are a sealed bearing and are not "packable".
You don't. They are sealed bearings pressed into the rim.
You must remove the wheel bearings, inspect them, repack them with grease, and install them back in the vehicle.
No.
Should be if undamaged.
You can't. The bearings and the hub are assembled as one and expected to last the life of the vehicle. When the hub/bearings do fail, the assembly is replaced as one unit.
No. The bearings are not that type.No. The bearings are not that type.
If you are referring to the front bearings, you have to buy a complete hub assembly.